A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 190
be so arranged, mg.vs\. by the aid ofthe band S S, asto rotate rapid-ly in the mag-netic field, theresistance to itsmotion is sogreat that it will seem to be grasped by an invisiblehand. On continuing the rotation for a few minutes,the heat developed will be sufficient to melt the con-tained alloy,… … 178 PROPERTIES OF A HELIX. Fig. 152. LECTURE XXXIII. Electro-Dynamics.—Ampere?s Discovery.—Propertiesof a Helix.— Cause of Magnetism.—Faradays Dis-covery of Magnetic Electricity.—Magnetic Machines.—Ruhmkorjf s Coil.— Geisslers Tubes.—Thermo-electricity.—Production of Electricity by Heat.—Thermo -…
Chemistry · Physics
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